Stirring device for microbial agent production
By designing a reverse-rotating stirring rod and scraper structure in the stirring device, the problems of uneven stirring and difficulty in cleaning up the barrel wall attachment are solved, efficient stirring and convenient cleaning are achieved, and the quality and efficiency of microbial bacterial agent production are improved.
Patent Information
- Application Number
- CN202422384685.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-29
AI Technical Summary
During the production process of existing microbial bacterial agents, the mixing is uneven and the one-way rotation of the stirring rod leads to poor mixing effect, and it is difficult to clean up the bacterial agent attached to the inner wall of the stirring barrel.
The spindle is used to drive the first stirring rod to rotate clockwise and the second stirring rod to rotate counterclockwise. The stirring rod is reversely rotated by helical gear transmission, and a scraper is set on the stirring rod. The scraper is inclined under the impact of fluid or is close to the stirring rod to scrape the barrel wall, so as to achieve the opposite steering of the stirring rod of different layers, improve the stirring effect and clean the adhesion of the barrel wall.
It improves stirring uniformity, reduces stirring time, and simplifies the cleaning process of bacterial agent in the stirring barrel.
Smart Images

Figure CN223112839U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a stirring device for the production of microbial inoculants, belonging to the technical field of microbial inoculant stirring. Background Art
[0002] A microbial inoculant refers to a live microbial preparation made by industrial production and propagation of target microorganisms, using a porous material as an adsorbent, such as peat and vermiculite, to adsorb the fermentation broth of the microbial cells. This kind of inoculant is used for seed dressing or root dipping, and has the effects of directly or indirectly improving soil, restoring soil fertility, and degrading toxic and harmful substances. When producing microbial inoculants, raw materials need to be added to the inoculants, so they need to be stirred. The existing stirring methods all use an electric motor to drive the rotation of a rotating shaft, and stirring rods are arranged on the rotating shaft. The stirring rods start to stir as the rotating shaft rotates. However, when the stirring rods in the existing stirring structure stir the inoculants, the stirring rods can only stir in one direction, causing the inoculants to rotate together, and the mixing effect is very poor. As a result, there will be problems of uneven stirring and affecting the stirring quality; moreover, a relevant device needs to be used separately to clean the inoculants attached to the inner wall of the stirring barrel.
[0003] In summary, it is obvious that the existing technology has inconveniences and defects in actual use, so it is necessary to improve it. Summary of the Utility Model
[0004] In view of the deficiencies in the background art, the utility model provides a stirring device for the production of microbial inoculants, which can make the stirring rods at different layers in the stirring barrel rotate in opposite directions, improve the stirring effect, reduce the stirring time, and at the same time, it is more convenient to clean the inoculants attached to the inner wall of the stirring barrel.
[0005] To solve the above technical problems, the utility model adopts the following technical solutions:
[0006] A stirring device for the production of microbial inoculants includes a stirring barrel. A main shaft is vertically installed at the middle position inside the stirring barrel. A plurality of first stirring rods are horizontally fixed at the upper position of the main shaft. A second stirring rod is fixed below the first stirring rod, and the second stirring rod is horizontally rotatably installed on the main shaft;
[0007] A driving bevel gear is horizontally and fixedly installed at the lower end of the first stirring rod, and a driven bevel gear is horizontally and fixedly installed at the upper end of the second stirring rod. An intermediate bevel gear is arranged between the driving bevel gear and the driven bevel gear, and the intermediate bevel gear is rotatably installed on a fixed rod;
[0008] When the main shaft drives the first stirring rod to rotate clockwise, the first stirring rod drives the second stirring rod to rotate counterclockwise through bevel gear transmission, and the first stirring rod and the second stirring rod rotate in opposite directions.
[0009] Further, there are multiple layers of the first stirring rods on the main shaft, and there are also multiple layers of the second stirring rods on the main shaft. The first stirring rods and the second stirring rods are arranged staggeredly along the direction of the main shaft.
[0010] Further, scraping plates are hinged at positions of the first stirring rods and the second stirring rods close to the outer ends.
[0011] Further, the distances between the hinge points of the scraping plates and the first stirring rods and the second stirring rods and the ends of the first stirring rods and the second stirring rods are at a certain distance.
[0012] Further, a through hole is provided at the middle position of the driven helical gear, and the main shaft passes through the through hole.
[0013] Further, the main shaft and the first stirring rods are internally hollow, the inner cavity of the main shaft is communicated with the inner cavity of the first stirring rods, and a plurality of nozzles are installed on the first stirring rods.
[0014] Further, a mounting plate is installed at the upper end inside the stirring barrel. A feeding box is fixedly installed at the upper end of the mounting plate. The main shaft passes through the feeding box and the mounting plate. The main shaft is rotatably installed in the feeding box. A feeding port is provided at the part of the main shaft located inside the feeding box. The feeding port is communicated with the inner cavity of the main shaft, and a feeding pipe is installed at the feeding port.
[0015] Further, a microbial agent input pipe is provided at the upper end of the stirring barrel. The microbial agent input pipe is communicated below the mounting plate. A discharge pipe is provided at the lower end of the stirring barrel.
[0016] After the present utility model adopts the above technical solutions, compared with the prior art, it has the following advantages:
[0017] A plurality of first stirring rods are horizontally fixed at the upper position of the main shaft. A second stirring rod is fixed below the first stirring rod. During stirring, the first stirring rods rotate clockwise, and the second stirring rods rotate counterclockwise. The scraping plates are separated from the first stirring rods and the second stirring rods, causing the scraping plates to tilt. The stirring rods at different layers inside the stirring barrel rotate in opposite directions, improving the stirring effect and reducing the stirring time. When it is necessary to scrape the inner wall of the stirring barrel, the main shaft rotates reversely, the first stirring rods rotate counterclockwise, the second stirring rods rotate clockwise, and the scraping plates closely adhere to the first stirring rods and the second stirring rods, and the scraping plates scrape the inner wall of the stirring barrel.
[0018] The present utility model will be described in detail below with reference to the accompanying drawings and embodiments. Description of the Drawings
[0019] Figure 1 is an internal cross-sectional view of the present utility model;
[0020] Figure 2 is Figure 1 the cross-sectional view along A-A in
[0021] In the figure,
[0022] 1 - stirring barrel, 2 - main shaft, 3 - driving motor, 4 - feeding box, 401 - feeding port, 5 - feeding pipe, 6 - inoculant input pipe, 7 - mounting plate, 8 - first stirring rod, 9 - nozzle, 10 - second stirring rod, 11 - scraper, 12 - driving helical gear, 13 - intermediate helical gear, 14 - driven helical gear, 15 - discharging pipe. Specific embodiments
[0023] For a clearer understanding of the technical features, objectives, and effects of the present utility model, the specific embodiments of the present utility model will now be described with reference to the accompanying drawings.
[0024] As Figure 1-2 shown, the present utility model provides a stirring device for microbial inoculant production, including a stirring barrel 1. A main shaft 2 is vertically installed at the middle position inside the stirring barrel 1. The main shaft 2 is driven by a driving motor 3. A plurality of first stirring rods 8 are horizontally fixed at the upper position of the main shaft 2. A second stirring rod 10 is fixed below the first stirring rod 8. The second stirring rod 10 is horizontally rotatably installed on the main shaft 2;
[0025] A driving helical gear 12 is horizontally and fixedly installed at the lower end of the first stirring rod 8. A driven helical gear 14 is horizontally and fixedly installed at the upper end of the second stirring rod 10. An intermediate helical gear 13 is provided between the driving helical gear 12 and the driven helical gear 14. The intermediate helical gear 13 is rotatably installed on a fixed rod, and the fixed rod is fixed to the inner wall of the stirring barrel 1. When the main shaft 2 drives the first stirring rod 8 to rotate clockwise, the first stirring rod 8 drives the second stirring rod 10 to rotate counterclockwise through helical gear transmission. The first stirring rod 8 and the second stirring rod 10 rotate in opposite directions to improve the stirring effect.
[0026] There are multiple layers of the first stirring rods 8 on the main shaft 2, and there are also multiple layers of the second stirring rods 10 on the main shaft 2. The first stirring rods 8 and the second stirring rods 10 are arranged in a staggered manner along the direction of the main shaft 2.
[0027] Scrapers 11 are hinged at positions near the outer ends of the first stirring rod 8 and the second stirring rod 10.
[0028] The hinge points of the scraper 11 with the first stirring rod 8 and the second stirring rod 10 are at a certain distance from the ends of the first stirring rod 8 and the second stirring rod 10. When stirring normally, the first stirring rod 8 rotates clockwise, the second stirring rod 10 rotates counterclockwise, and under the impact of the fluid, the scraper 11 is separated from the first stirring rod 8 and the second stirring rod 10, as Figure 2As shown, the scraper 11 is tilted; when it is necessary to scrape the inner wall of the stirring barrel 1, the main shaft 2 rotates in the reverse direction, the first stirring rod 8 rotates counterclockwise, the second stirring rod 10 rotates clockwise, and the scraper 11 closely adheres to the first stirring rod 8 and the second stirring rod 10. At this time, the scraper 11 scrapes the inner wall of the stirring barrel 1.
[0029] A through hole is provided at the middle position of the passive bevel gear 14, and the main shaft 2 passes through the through hole.
[0030] The main shaft 2 and the first stirring rod 8 are internally hollow, the inner cavity of the main shaft 2 is communicated with the inner cavity of the first stirring rod 8, and a plurality of nozzles 9 are installed on the first stirring rod 8.
[0031] An installation plate 7 is installed at the upper end inside the stirring barrel 1, a feeding box 4 is fixedly installed at the upper end of the installation plate 7, the main shaft 2 passes through the feeding box 4 and the installation plate 7, the main shaft 2 is rotatably installed in the feeding box 4, a feeding port 401 is provided at the part of the main shaft 2 located inside the feeding box 4, the feeding port 401 is communicated with the inner cavity of the main shaft 2, and a feeding pipe 5 is installed at the feeding port 401.
[0032] A bacterial agent input pipe 6 is provided at the upper end of the stirring barrel 1, the bacterial agent input pipe 6 communicates to below the installation plate 7, and a discharge pipe 15 is provided at the lower end of the stirring barrel 1.
[0033] The specific working principle of the present utility model:
[0034] The bacterial agent is input from the bacterial agent input pipe 6, the raw material is conveyed into the feeding box 4 from the feeding pipe 5, the raw material enters the first stirring rod 8 from the main shaft 2, and nozzles 9 are installed on the first stirring rod 8, so that the raw material is evenly sprinkled into the bacterial agent, feeding while stirring, and the mixing effect is better.
[0035] When stirring normally, driven by the main shaft 2, the first stirring rod 8 rotates clockwise, the second stirring rod 10 rotates counterclockwise, and under the impact of the fluid, the scraper 11 is separated from the first stirring rod 8 and the second stirring rod 10, as Figure 2 shown, the scraper 11 is tilted; when it is necessary to scrape the inner wall of the stirring barrel 1, the main shaft 2 rotates in the reverse direction, the first stirring rod 8 rotates counterclockwise, the second stirring rod 10 rotates clockwise, the scraper 11 closely adheres to the first stirring rod 8 and the second stirring rod 10. At this time, the scraper 11 scrapes the inner wall of the stirring barrel 1, making the stirring rods in different layers inside the stirring barrel rotate in opposite directions, improving the stirring effect, reducing the stirring time. At the same time, by reversing the main shaft 2, the scraper 11 can be used for scraping materials, which is more convenient for cleaning the bacterial agent attached to the inner wall of the stirring barrel.
[0036] The above is an example of the best implementation mode of the present utility model, and the parts not described in detail are all common general knowledge in the art. The protection scope of the present utility model shall be subject to the content of the claims, and any equivalent transformation based on the technical inspiration of the present utility model shall also be within the protection scope of the present utility model.
Claims
1. A stirring device for the production of microbial inoculants, characterized in that: It includes a stirring barrel (1). In the middle position inside the stirring barrel (1), a main shaft (2) is vertically installed. At the upper position of the main shaft (2), a plurality of first stirring rods (8) are horizontally fixed. Below the first stirring rods (8), second stirring rods (10) are fixed. The second stirring rods (10) are horizontally rotatably installed on the main shaft (2). At the lower end of the first stirring rod (8), a driving bevel gear (12) is horizontally and fixedly installed. At the upper end of the second stirring rod (10), a driven bevel gear (14) is horizontally and fixedly installed. Between the driving bevel gear (12) and the driven bevel gear (14), an intermediate bevel gear (13) is provided. The intermediate bevel gear (13) is rotatably installed on a fixed rod. When the main shaft (2) drives the first stirring rod (8) to rotate clockwise, the first stirring rod (8) drives the second stirring rod (10) to rotate counterclockwise through bevel gear transmission. The first stirring rod (8) and the second stirring rod (10) rotate in opposite directions.
2. The stirring device for producing microbial inoculum according to claim 1, wherein: There are multiple layers of the first stirring rods (8) on the main shaft (2), and there are also multiple layers of the second stirring rods (10) on the main shaft (2). The first stirring rods (8) and the second stirring rods (10) are arranged staggeredly along the direction of the main shaft (2).
3. The stirring device for producing microbial inoculum according to claim 1, characterized in that: Scrapers (11) are hinged at positions near the outer ends of the first stirring rods (8) and the second stirring rods (10).
4. The stirring device for producing microbial inoculum according to claim 3, characterized in that: The hinge points of the scrapers (11) with the first stirring rods (8) and the second stirring rods (10) are at a certain distance from the ends of the first stirring rods (8) and the second stirring rods (10).
5. A stirring device for producing a microbial inoculant according to claim 1, characterized in that: A through hole is provided in the middle position of the driven bevel gear (14). The main shaft (2) passes through the through hole.
6. The stirring device for producing microbial inoculum according to claim 1, characterized in that: The main shaft (2) and the first stirring rods (8) are hollow inside. The inner cavity of the main shaft (2) is connected to the inner cavity of the first stirring rods (8). A plurality of nozzles (9) are installed on the first stirring rods (8).
7. A stirring device for producing a microbial inoculant according to claim 1, characterized in that: An installation plate (7) is installed at the upper end inside the stirring barrel (1). At the upper end of the installation plate (7), a feed box (4) is fixedly installed. The main shaft (2) passes through the feed box (4) and the installation plate (7). The main shaft (2) is rotatably installed inside the feed box (4). A feed port (401) is provided on the part of the main shaft (2) located inside the feed box (4). The feed port (401) is connected to the inner cavity of the main shaft (2). A feed pipe (5) is installed at the feed port (401).
8. The stirring device for producing microbial inoculum according to claim 1, wherein: A microbial agent input pipe (6) is provided at the upper end of the stirring barrel (1). The microbial agent input pipe (6) is connected and communicated below the installation plate (7). A discharge pipe (15) is provided at the lower end of the stirring barrel (1).